105 
Old trees that have become barren can be renovated by 
cutting them pretty severely, and covering the wounds with paint 
made of red lead and oil, and giving them a good top-dressing 
of farm-yard manure. 
Fig. 5 show mode of pruning and shape. 
Insvurious Insects anp DisEaséEs. 
RED SPIDER (TETRANYCHUS TELAREUS). 
This pest is one of the principal enemies of the plum, and by 
allowing it to remain on the tree it gives the leaves a rusty-brown 
unhealthy appearance, and causes them to shed much earlier than 
the natural period. 
Prevention and Remedies. 
Never allow stones, logs, or rubbish to collect or exist in an 
orchard. 
A very good emulsion is made from kerosene—say, 1 part to 
25 parts of water; use when the leaves are off the tree. 
Sulphur has been found a very good preventive. 
Tobacco water is a very effective remedy against this insect, 
and may be sprayed on the tree when the fruit is off. 
Soft soap and Gishurst’s compound are also very good remedies. 
When spraying use the spray in an upward direction, as the 
mites are mostly on the under part of the leaves; they should be 
sprayed on with considerable force. 
As many leaves as possible which are badly attacked by the 
spider should be shaken off into a sheet and burnt. 
Painting the stems of the trees with a hard brush, using slaked 
lime and sulphur mixed for the purpose, is a prevention. 
CHERRY SLUG (SELANDRIA CERASI). 
This insect is most destructive in the larva state. It resembles 
a small dark-greenish slimy caterpillar, and infests the leaves of 
plum and other trees, destroying them by gnawing the epidermis 
off the upper portion, and leaving the skeleton and the lower 
portions of the leaves untouched. 
About the second week in November it is to be seen on the 
trees. 
Prevention and Remedies. 
We find the best time to tackle this slug is before the fruit 
becomes far advanced, and not when the tree is in bloom. 
Dusting the tree with sand kills the slug, but it does not destroy 
the eggs. 
Helishore powder—at the rate of 1 to 1} oz. to the gallon of 
water, and spraying the tree—is found the most effective remedy 
for the prevention of this pest. 
